関連する話題: Let's enjoy English!Ⅱ; A fourth diary in English; Let’s enjoy English! 4

Let's enjoy English!

No.320　13/02/06 23:11
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【What is sievert?】

The radioactive material emits radiation,and amount of the radiation becomes different, according to kinds and amount of the radioactive material.How do we express amount of the radiation?😃

《Degrees of the radiation》

As to the amount of the radiation,it's varied,it depends on ways of our thinking.😃

For example,there are the number,and amount of the radiations.In addition,damage to a living bodies is whether it's light or heavy.☝

Therefore,there are three ways of measuring the radiation.💡

《Amount of the radiation,becquerel》

Becquerel is the one which is expressed in numbers per a second.We call a situation in which single radiation is emitted per a second 1 becquerel.😃

Therefore,the ones which are expressed in numbers have nothing to do with kinds or nature of the energy of the radiation.

《Amount of rays of the radiation absorbed in the living body,gray》

Gray is an unit of the radiation which is absorbed in a living body per a second.😃